12210002021 has 8 divisors (see below), whose sum is σ = 14775128640. Its totient is φ = 9850085568.

The previous prime is 12210002011. The next prime is 12210002039. The reversal of 12210002021 is 12020001221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12210002021 - 2²² = 12205807717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12210001993 and 12210002011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210002011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51302411 + ... + 51302648.

It is an arithmetic number, because the mean of its divisors is an integer number (1846891080).

Almost surely, 2^12210002021 is an apocalyptic number.

It is an amenable number.

12210002021 is a deficient number, since it is larger than the sum of its proper divisors (2565126619).

12210002021 is a wasteful number, since it uses less digits than its factorization.

12210002021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102605083.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12210002021 its reverse (12020001221), we get a palindrome (24230003242).

The spelling of 12210002021 in words is "twelve billion, two hundred ten million, two thousand, twenty-one".